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Finding the Fourth Proportional to 3,966.60, 5,952.60 and 2,119.05

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Solution

The fourth proportional to 3,966.60, 5,952.60 and 2,119.05 is: 3,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.60 : 5,952.60 = 2,119.05 : x
  2. Step 2: Convert to fraction form
    3,966.60/5,952.60 = 2,119.05/x
  3. Step 3: Cross multiply
    3,966.60x = 5,952.60 × 2,119.05
  4. Step 4: Simplify right side
    3,966.60x = 12,613,857.03
  5. Step 5: Solve for x
    x = 12,613,857.03/3,966.60
  6. Step 6: Final answer
    x = 3,180.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.